- Heloderma, genus Heloderma - type genus of the Helodermatidae; American venomous lizards
--1 is a kind of reptile genus
--1 is a member of Helodermatidae, family Helodermatidae
--1 has members:Gila monster, Heloderma suspectum; beaded lizard, Mexican beaded lizard, Heloderma horridum